This weekend starting early Saturday morning on August 11th, 2018, (shortly after Midnight) I will be rebooting most of the servers for kernel updates.  The 4.15.0 kernel seems to be particularly problematic although for us it’s not been problematic in ways that cause crashes, just occasional data delay when the Ethernet driver barfs.

     And then depending upon how long that takes, I will also be taking machines down to image them that morning and if I don’t finish all of them also on Sunday morning.